If Apple billed your SuperGrok subscription and you want a refund, go to...
https://holdenlvxt779.theburnward.com/what-refund-reason-should-i-pick-for-supergrok-on-apple
If Apple billed your SuperGrok subscription and you want a refund, go to reportaproblem.apple.com and sign in with your Apple ID. Find your subscription under iOS Subscriptions, then request a refund from there